Does that hit a power line at the end?
I'm not even sure it's real and not photoshopped. I don't think a drone would actually explode from a power line, unless it somehow bridges an insulating airgap somehow.
I guess it's possible the drone's batteries just blew up on impact, but I don't really know drones. The thing sounded super high-pitched so maybe it was some dangerously pimped up drone?